from __future__ import annotations

from unittest.mock import AsyncMock, MagicMock, patch

import pytest

from yuxi.channels.adapters.yuanbao.adapter import YuanbaoAdapter
from yuxi.channels.adapters.yuanbao.dispatch import (
    DispatchAction,
    InteractiveDispatcher,
)
from yuxi.channels.adapters.yuanbao.format import format_outbound, _map_message_type
from yuxi.channels.models import (
    ChannelIdentity,
    ChannelMessage,
    ChannelResponse,
    ChannelType,
    ChatType,
    DeliveryResult,
    MessageType,
)

YUANBAO = ChannelType.YUANBAO


def _make_identity(
    channel_chat_id: str = "user_openid_001",
    channel_user_id: str = "user_openid_001",
    channel_message_id: str = "msg_001",
) -> ChannelIdentity:
    return ChannelIdentity(
        channel_id="yuanbao",
        channel_type=YUANBAO,
        channel_user_id=channel_user_id,
        channel_chat_id=channel_chat_id,
        channel_message_id=channel_message_id,
    )


def _make_adapter(config: dict | None = None) -> YuanbaoAdapter:
    cfg = config or {"app_key": "test_key", "app_secret": "test_secret", "dm_policy": "open"}
    return YuanbaoAdapter(config=cfg)


# ==================== ChannelCapabilities Tests ====================


class TestChannelCapabilitiesOptimization:
    def test_capabilities_has_explicit_false_fields(self):
        adapter = _make_adapter()
        caps = adapter.capabilities
        assert caps.edit is False
        assert caps.unsend is False
        assert caps.pin is False
        assert caps.polls is False
        assert caps.typing is False
        assert caps.send_ephemeral is False
        assert caps.effects is False

    def test_capabilities_retains_true_fields(self):
        adapter = _make_adapter()
        caps = adapter.capabilities
        assert caps.reply is True
        assert caps.reactions is True
        assert caps.media is True
        assert caps.block_streaming is True
        assert caps.lane_streaming is True
        assert caps.reasoning_streaming is True
        assert caps.native_commands is True
        assert caps.supports_markdown is True
        assert caps.supports_streaming is True

    def test_capabilities_chat_types(self):
        adapter = _make_adapter()
        caps = adapter.capabilities
        assert "direct" in caps.chat_types
        assert "group" in caps.chat_types

    def test_capabilities_streaming_modes(self):
        adapter = _make_adapter()
        caps = adapter.capabilities
        assert "off" in caps.streaming_modes
        assert "block" in caps.streaming_modes
        assert "lane" in caps.streaming_modes
        assert "reasoning" in caps.streaming_modes


# ==================== send_typing_indicator Tests ====================


class TestSendTypingIndicator:
    @pytest.fixture
    def adapter(self):
        return _make_adapter()

    @pytest.mark.asyncio
    async def test_typing_indicator_no_client(self, adapter):
        result = await adapter.send_typing_indicator("chat_001")
        assert result.success is False
        assert "not initialized" in result.error.lower()

    @pytest.mark.asyncio
    async def test_typing_indicator_success(self, adapter):
        adapter._http_client = MagicMock()
        adapter._token_manager = MagicMock()
        adapter._token_manager.get_token = AsyncMock(return_value="test_token")
        adapter._token_manager.api_base = "https://api.yuanbao.test"

        mock_resp = AsyncMock()
        mock_resp.status = 200
        mock_resp.__aenter__ = AsyncMock(return_value=mock_resp)
        mock_resp.__aexit__ = AsyncMock(return_value=None)
        adapter._http_client.post.return_value = mock_resp

        result = await adapter.send_typing_indicator("open_id_001")
        assert result.success is True

    @pytest.mark.asyncio
    async def test_typing_indicator_http_error(self, adapter):
        adapter._http_client = MagicMock()
        adapter._token_manager = MagicMock()
        adapter._token_manager.get_token = AsyncMock(return_value="test_token")
        adapter._token_manager.api_base = "https://api.yuanbao.test"

        mock_resp = AsyncMock()
        mock_resp.status = 500
        mock_resp.__aenter__ = AsyncMock(return_value=mock_resp)
        mock_resp.__aexit__ = AsyncMock(return_value=None)
        adapter._http_client.post.return_value = mock_resp

        result = await adapter.send_typing_indicator("open_id_001")
        assert result.success is False
        assert "500" in result.error

    @pytest.mark.asyncio
    async def test_typing_indicator_network_exception(self, adapter):
        adapter._http_client = MagicMock()
        adapter._token_manager = MagicMock()
        adapter._token_manager.get_token = AsyncMock(return_value="test_token")
        adapter._token_manager.api_base = "https://api.yuanbao.test"

        adapter._http_client.post.side_effect = Exception("Connection refused")

        result = await adapter.send_typing_indicator("open_id_001")
        assert result.success is False
        assert "Connection refused" in result.error


# ==================== edit_message / delete_message Tests ====================


class TestEditDeleteNoSideEffects:
    @pytest.fixture
    def adapter(self):
        return _make_adapter()

    @pytest.mark.asyncio
    async def test_edit_message_no_cache_side_effect(self, adapter):
        adapter._send_cache.add("msg_abc", "chat_123", "Original content")

        result = await adapter.edit_message("chat_123", "msg_abc", "Updated content")
        assert result.success is False
        assert "not supported" in result.error.lower()

        entry = adapter._send_cache.get("msg_abc")
        assert entry is not None
        assert entry.status == "sent"

    @pytest.mark.asyncio
    async def test_delete_message_no_cache_side_effect(self, adapter):
        adapter._send_cache.add("msg_abc", "chat_123", "Original content")
        adapter._bot_message_ids.add("msg_abc")

        result = await adapter.delete_message("chat_123", "msg_abc")
        assert result.success is False
        assert "not supported" in result.error.lower()

        entry = adapter._send_cache.get("msg_abc")
        assert entry is not None
        assert entry.status == "sent"

        assert "msg_abc" in adapter._bot_message_ids


# ==================== SYSTEM_EVENT Handler Tests ====================


class TestSystemEventHandler:
    @pytest.fixture
    def adapter(self):
        return _make_adapter()

    @pytest.mark.asyncio
    async def test_handle_system_event_typing(self, adapter):
        event = {
            "type": "typing",
            "open_id": "user_123",
            "group_open_id": "group_abc",
        }
        await adapter._handle_system_event(event)

    @pytest.mark.asyncio
    async def test_handle_system_event_unknown(self, adapter):
        event = {
            "type": "some_custom_event",
            "open_id": "user_123",
        }
        await adapter._handle_system_event(event)

    @pytest.mark.asyncio
    async def test_handle_ws_event_dispatches_system_event(self, adapter):
        event = {
            "type": "typing",
            "msg_id": "msg_typing_001",
            "open_id": "user_123",
        }
        adapter._seen_message_ids.clear()
        adapter._handle_system_event = AsyncMock()

        await adapter._handle_ws_event(event)

        adapter._handle_system_event.assert_called_once_with(event)


# ==================== LOCATION Type Mapping Tests ====================


class TestLocationTypeMapping:
    def test_map_message_type_includes_location(self):
        result = _map_message_type(MessageType.LOCATION, "")
        assert result == "location"

    def test_format_outbound_with_location_type(self):
        identity = _make_identity(channel_chat_id="user_001")
        response = ChannelResponse(
            identity=identity,
            content="Location share",
            message_type=MessageType.LOCATION,
        )
        payload = format_outbound(response)
        assert payload["msg_type"] == "location"
        assert payload["content"] == "Location share"


# ==================== Dispatch Classification Tests ====================


class TestDispatchClassificationOptimization:
    def test_channel_post_classified_as_message(self):
        event = {
            "type": "channel_post",
            "open_id": "user_123",
            "channel_id": "ch_001",
            "content": "Channel broadcast",
        }
        action = InteractiveDispatcher.classify_event(event)
        assert action == DispatchAction.MESSAGE

    def test_edited_channel_post_classified_as_message(self):
        event = {
            "type": "edited_channel_post",
            "open_id": "user_123",
            "channel_id": "ch_001",
            "content": "Edited channel broadcast",
        }
        action = InteractiveDispatcher.classify_event(event)
        assert action == DispatchAction.MESSAGE

    def test_normal_message_still_classified_correctly(self):
        event = {
            "type": "message",
            "open_id": "user_123",
            "content": "Hello",
        }
        action = InteractiveDispatcher.classify_event(event)
        assert action == DispatchAction.MESSAGE

    def test_command_still_classified_correctly(self):
        event = {
            "type": "message",
            "open_id": "user_123",
            "content": "/start",
        }
        action = InteractiveDispatcher.classify_event(event)
        assert action == DispatchAction.COMMAND

    def test_edited_message_still_classified_correctly(self):
        event = {
            "type": "edited_message",
            "open_id": "user_123",
            "content": "Updated",
        }
        action = InteractiveDispatcher.classify_event(event)
        assert action == DispatchAction.MESSAGE

    def test_reaction_still_classified_correctly(self):
        event = {"type": "reaction_added", "open_id": "user_123"}
        action = InteractiveDispatcher.classify_event(event)
        assert action == DispatchAction.REACTION

    def test_bot_menu_still_classified_correctly(self):
        event = {"type": "bot_menu", "open_id": "user_123"}
        action = InteractiveDispatcher.classify_event(event)
        assert action == DispatchAction.BOT_MENU

    def test_member_event_still_classified_correctly(self):
        event = {"type": "member_joined", "open_id": "user_123"}
        action = InteractiveDispatcher.classify_event(event)
        assert action == DispatchAction.MEMBER_EVENT

    def test_card_action_still_classified_correctly(self):
        event = {"type": "card_action", "open_id": "user_123"}
        action = InteractiveDispatcher.classify_event(event)
        assert action == DispatchAction.CARD_ACTION

    def test_read_receipt_still_classified_correctly(self):
        event = {"type": "read_receipt", "open_id": "user_123"}
        action = InteractiveDispatcher.classify_event(event)
        assert action == DispatchAction.READ_RECEIPT

    def test_unknown_event_type(self):
        event = {"type": "unknown_type", "open_id": "user_123"}
        action = InteractiveDispatcher.classify_event(event)
        assert action == DispatchAction.UNKNOWN